178 KRESn-WATER ALG^ PROM BUßSIA.
I n addition to those mentioned above, there ai-e a number of spocies, winch although
recorded from elsewhere, appear to be piiucipally characteristic ot the Indo-Malayau
region. Such are:—C l o s t e y m n nematodes Josh., Cosmarium capeiise (Nordst.) Da Toni,
C. SHbtiirgidiim (Turn.) Schmidlc, Arthrodcmus eurvaius Turn.j A. (jibhcruhts Josh., Staurastrum
unicome Turn, and varieties, sexangulare (Bulu.) Rabenh. var. hidentatum
Gutw., and others.
I t should also be borno in mind that many very distinctive species are at
present only known from single localities in India, Ceylon, Burma, Java, or Queensland,
which upon further investigation may prove to be widely distributed in all
these countries, and perhaps in adjoining areas. Indeed, judging from our own experience
of the Desmids of some of these countries, it seems most probable that future
investigations will bdng to light a most characteristic Dosmid-flora of the Indo-Malayau
area.
One of the most conspicuous spocics of Slauraatrum described in the present paper
is StauraHtrum Burkillii, and it is a Desmid of particular interest, as its only knowQ
relatives occur in Siara and Central China.
A number of the species occurring in Ceylon and Burma are also found iu
Madagascai-. This is more especially so with species of the. genus Cosmarium.
Fragmentary plants of a species of Batrachospcrmum occurred in a collection from
a sti-eam at Lashio (No. 32557), but they were insufficient for identification. Also
R species of Entcj-omorpha in a fragmentary condition was observed in No. 22598
""The Old Lashio bazaar).
The collections examined were as follows;—
No. 21501.
No. 21502.
No. 21503.
No, 21551.
No. 21975.
No. 22124.
No. 22192.
No. 22193.
No. 22263.
No. 22513.
No. 225ü7.
BEamo; springs > . the J bank. 1 Febr. 1904.
Bhamo; banks of the Irrawaddy and backwaters of the stream. 1 Febr.
1904.
Momauk, east of Bhamo; among paddy-fields at (he foot of the hills.
2 Febr. 1904.
MinTwa, Pegu District. Algfe from tbe Pegu-Sittang canal, wbioh has very
muddy water, 6 Jan. 1904.
Kyaiiktaga, Pegu District. In clear stagnant pools on a clay soil, 7 Jan.
J904.
Kyaukse; a pool which probably dries up later in fie dry season.
9 Jan. 1904.
Singaing, Kjaukse District. In shallow pools much overgrown with weeds
and near irrigation canals. 10 Jan, 1904.
Kyaukee; Algse from the i
r bed, 11 Jan. 1904.
Manpwe, N. Shan States;
pools near the railway. 18 Jan. 1904.
L&shio; from a stream in the hills tbree
of Lashio. 19 Jan. 1904,
four miles to the south-east.
COLLECTIOSS.
Old Lashio bazaar. Au olive-green Alga sold in bundles in the bazaar
to bo eaten. Bugles some six inches in length and breadth, and
wrapped in two leaves. [Unfortunately the specimens were too fragmentary
for identiacation, but the Alga was most probably an Eaievo-
;iiorj)/ii7.—G.S.W-]
Kalha.
1904.
Myiumu, four miles to the east at the village of Nyaung-ngyin. In a
. tank o£ water, opaque from suspended clay, and from which cattle drink.
7 Febr. 1904.
. from a swamp on the oouree of a small stream. 27 Jan.
No. 22999. Thayetmyo ; iu ll
Irrawaddy. 19 Febr. I90i.
No. 24120, Hsipaw. 16 Jan! 1904. The Alga
abundantly in all the streams.
[This .Alga is Splrogyra. maxima (H
sold in the bazaar and is found
SB.) Wittr.-G.S.W.]
• No, 2419a.
No. 24j50.
No. 24451.
No. 24483.
No. 24505.
. [{forwarded
No. 1791C.
No. 24674.
Mimeang, ne>ir Hsipaw. Algm fiom a marshy open, place in the forest.
17 Jan. 1904.
In the mountains east of Kawkareik;
19U4, '
Myawadi. In the swift
7, Mar. 1904.
rapidly running water. 5 Mar.
which here forms the boundary of Siam.
Between ,Thiiigan-iiyi-nauiig and Kawkareik. In a side channel oi the
stream running down to Kawkareik; water coming from springs in th«
forest. S liar. 1904.
In the Kan-gyi, Mudon. 11 Mar. 1904. The Kan-gyi ( - b i g tank) s
a natural lake with very clear water.
to us l a t e r ) :—
Viaagnpatam. 9 Dec. 1902. Alga in ditch at the side of salt works.
Burd«an. Aug. 1903. Alg» from flooded rice-fields.